The three channels of the subtle system are known in sanskrit language as Ida Nadi, Pingala Nadi, and Shushumna Nadi.
Actually Nadi means channel or river.
Ida Nadi – (the left side)
Ida Nadi is the left side, the Moon Channel. It gives us the power of our emotions, in it’s pure state it takes the qualities of deep Joy, pure love, compassion, music and art. This side is the more feminine side of mankind but exists equally in men and women.
However, human beings are prone to left side problems such as emotional attachments, depression, low self esteem and feelings of guilt, lethargy, ritualism, bad habits and despair
Pingala Nadi – (the right side)
Pingala Nadi is the right side, the sun channel. It gives us the power of our rational mind, our physical being, learning and the strength to overcome problems through our endeavours.
However, human beings are prone to right side problems such as egoistic behaviour (selfishness), arrogance, pride, anger (violence), hatred. This is the more masculine side of men and women.
Shushumna Nadi – (the centre)
Shushumna nadi is the balance of the other two channels, daily meditation , as described on this website, leads to a cooling of the sun channel and a warming of the moon channel.
The human attention then stops swinging from left side to right side, from happiness to sadness, from activity to sloth, and remains always in the centre, always acting without acting, doing without doing, witnessing the dramas of our own lives.